Mitchell, J. and Webber, J. Beau W. and Strange, John H. (2008) Nuclear magnetic resonance cryoporometry. Physics Reports, 461 (1). pp. 1-36. ISSN 0370-1573 . (Access to this publication is restricted)
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Nuclear Magnetic Resonance (NMR) cryoporometry is a technique for non-destructively determining pore size distributions in porous media through the observation of the depressed melting point of a confined liquid. It is suitable for measuring pore diameters in the range 2 nm-1 mu m, depending on the absorbate. Whilst NMR cryoporometry is a perturbative measurement, the results are independent of spin interactions at the pore surface and so can offer direct measurements of pore volume as a function of pore diameter. Pore size distributions obtained with NMR cryoporometry have been shown to compare favourably with those from other methods such as gas adsorption, DSC thermoporosimetry, and SANS. The applications of NMR cryoporometry include studies of silica gels, bones, cements, rocks and many other porous materials. It is also possible to adapt the basic experiment to provide structural resolution in spatially-dependent pore size distributions, or behavioural information about the confined liquid.
|Uncontrolled keywords:||NMR; cryoporometry; pore size distributions; Gibbs-Thomson equation|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group|
|Depositing User:||J.B.W. Webber|
|Date Deposited:||18 Apr 2009 09:14|
|Last Modified:||07 May 2014 11:46|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/13467 (The current URI for this page, for reference purposes)|